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Finding the Fourth Proportional to 265,844,657.60, 399,177,559.20 and 144,912,305.60

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Solution

The fourth proportional to 265,844,657.60, 399,177,559.20 and 144,912,305.60 is: 217,592,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,844,657.60 : 399,177,559.20 = 144,912,305.60 : x
  2. Step 2: Convert to fraction form
    265,844,657.60/399,177,559.20 = 144,912,305.60/x
  3. Step 3: Cross multiply
    265,844,657.60x = 399,177,559.20 × 144,912,305.60
  4. Step 4: Simplify right side
    265,844,657.60x = 57,845,740,447,452,488
  5. Step 5: Solve for x
    x = 57,845,740,447,452,488/265,844,657.60
  6. Step 6: Final answer
    x = 217,592,262.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.